Lurking beneath the water

As we approached the water ponds which were used to cool and store nuclear waste, I suddenly squinted because my eyes were surprised by daylight.

This once top secret operation was literally out in the open. The ponds are still, reflecting the clouds above.

Imagine a massive concrete open air swimming pool, only here you can't even dip a toe. The water is radioactive.

Image caption
Standing outside the main Sellafield plant in Cumbria

Beneath the surface lurks the problem. Old fuel rods and who knows what else lie on the bottom.

Then the next surprise, although it should have been obvious to me. A seagull swoops down and lands on the water.

I wish it away, but it stays and then it takes a drink.

My own guts almost go into spasm as I contemplate the implications for the bird.

Why on Earth was this ever left open to the elements?

My guide tells me that when it was built after World War II they weren't thinking about the future because they didn't know if there'd be a tomorrow.

Covering it now is not an option, we're told, as an original crane has to travel along its length to get access to waste below.

Dealing with the waste

While doing a piece to camera I'm positioned next to a warning sign which screams - 'Do not linger here'.

Of course I move on, but the gulls are blissfully unaware of the danger.

Another issue with the ponds is that wind and rain bring dust and dirt. Over the decades it has settled in the ponds, so now there's also a contaminated sludge that is going to be a nightmare to scoop up and dispose of safely.

Media captionChris Jackson goes inside Britain's nuclear site at Sellafield in Cumbria, one of the most complex and hazardous in the world

Then there are large concrete silos. Only these don't store grain, but a junk pile of old discarded waste.

Again there's no list of what's inside. They'll have to open it up and invent ways of dealing with what they find.

It is a monumental task and one that won't be finished in my lifetime.

As we leave the inner zone we discard our over-clothes, and insert our bodies into a succession of monitoring machines that ensure we are clean.

The decommissioning teams must take this process as a daily routine.

Inside Out is broadcast on Monday, 23 September at 19:30 BST on BBC One, and nationwide for seven days thereafter on the iPlayer.